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International Journal of Mathematical Education in Science and Technology Volume 44, 2013 - Issue 5: Special Section on the Teaching and Learning of Calculus
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CLASSROOM NOTE

Don’t wear that button out!

Brian J. JueDepartment of Mathematics, California State University Stanislaus, One University Circle, Turlock, CA95382, USACorrespondence[email protected]
&
Michael D. BiceDepartment of Mathematics, California State University Stanislaus, One University Circle, Turlock, CA95382, USA
Pages 739-745 | Received 16 Jun 2012, Accepted 01 Nov 2013, Published online: 23 Jan 2013
 
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Abstract

As students explore the technological tools available to them for learning mathematics, some will eventually discover what happens when a function button is repeatedly pressed on a calculator. We explore several examples of this, presenting tabular and graphical results for the square root, natural logarithm and sine and cosine functions. Observed behaviour is proven and then discussed in the context of fixed points.

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